Automobile lifting-jack and turn-table.



A. LBmKBR.

AUTOMOBILE LIP TING JACK AND THEN TABLE.

I APPLICATION IYILBD XOV. 2, 1810. 0,096.

L m H 9 E 11MB 3 DOS 1 v n W: AB n 3 t H m P ma J/w mm L Am A. J. BECKER. v AUTOMOBILE Llwme' J-ACK AND TEEN TABLE.

APPLIUATZGH FILED HOV. 2,1810. .990 096 Patented Apr.18,1911.

3 BHBEQkSEEIiT 2.

3 Sum-mar ALLENJ. BECKER.

v witnessesatmrneg A; J. BECKER.

AUTOMOBILP LIFTING JACK AND TURN TABLE. I APPLIGATIOH FILED NOV. 2, 1910. 990,096, I Patented Apr. 18, 1911.

' 3 SHEETS-SHEET 3.

FIG. f.

9 l i /6 El Juncntor ALLENJ. BECKER. witnesses UNITED sTAtrns PATENT OFFICE.

ALLEN J. BECKER, OEPITTSBURG, PENNSYLVANIA. ASSIGNOR TO THOMAS H. GRIFFIN,

OF PITTSBUBG, PENNSYLVANIA. v

AUTOMOBILE LIFTING-JACK AND TURN-TABLET."

To all 407mm it may concern:

Be it, known that l, ALLEN J. BECKER, a

citizen of;thc United States. residing at Pittsburg, in the county of Allegheny and State of lezmsylvania, have invented new and useful Improvements in Automobile Lifting-Jaelts and '.luru-'lables, of which the following is'a specifi ation.

iiy invention r lates to apparatus for lifting vehicles from the ground and supporting them in an elevated position-while being moved about or for the purpose of making repairs. p

The object of my invention is to pro ide a combined jack and truck or turntable for sinmlt'aneonsl lifting the front and rear axles of a vehicle and supporting the same upon the. truck-platform. which may be turned in any direction and may be readily moved about with little effort y a singl person. It is especially adapted -to be used in lifting automobiles and moving them easily from onelo ation to another ina garage or shop.

In this invention l have provided a skeleton table or platform which is adjustable both as .0 length and width to adapt. it o ditl'erent machines and yet being excee-h in zly rigid when the parts are loelted in any adjusted position. The four supporting: jacks at the corners of the 't'rzuuc are operated in multip e to simultaneously raise or lower the saddles whi h support the axles of a vehicle. so that a machine may he readily handled by a single person. The saddles which support the rear a.\'le. are especially constructed to aeeonunodate the truss-rods. and are pivotally mounted so that. they in: f be folded over out of the way while the turntable is being pushed under the body of the vehicle.

The several objects of my invention will bc'apparentand the construction will be understood from the following description in connection with the accompanying dra'-\'- inns. in which-- 7 Figure l is a top plan view of a turntable truck Qllll')t(l 'll!{ my invention; Fig. 2 is a side elevation; Fig. 2' l.\ a vert'i -al section on the iinellL-lll (if-Fig.- 1: FM. 4 is an end elevation. partly 'n saetion, on the line lV-l V of Fig. l: and Fig. 5 is a. vertical section on the line l;'---\-' of Fig. 1-.

ipecification of Letters Patent.

The rectangular frame of my truck or turntable comprises duplex frame bars, each having inner and outer interfitting members 1. 2. adapted to slide upon one another and fastened respectively to corner brackets l at opposite ends. The inner bar is provided with a channel upon the outer side to Patented Apr. 18, 1911.

Application filed November 2, 1910. Serial No. 590,321.

receive. the outer member, the upper and lower flanges of the channel forming a. support for the inner bar. The bars are provided withlougitmlinal slots 7, to receive the shanks of locking bolts or screws 8, having squared heads which fit. into the channets of the outer bar .2, and are threaded to l'teeize. the thumb-nuts 9. By loosening the tlnnah-nuts, the members of the frame-bars can slide telescopically upon each other, permitting the frame to be adjusted in size to adapt it to any vehicle, and when the nuts 9 are tightened the frame will be absolutely rigid. The interlitting channel bars of the frame prevent any sagging or verticalmovement and by arranging the channels on edge 0! vertically 1 have provided a structure which presents the maximum rigidity and strength. l urthermore, I provide the corner brackets 4 with lateral lugs 4" which tit into the channels of the frame bars and very materially strengthen the frame and greatly add to the rigidity of the whole Sil'ltrltll't. By this construction the strain is largely taken fromthe bolts 11, by which the frame bars are secured to the-arms of the corner brackets 4.

The corner brackets are provided with'an integral arm 1 which carries upon its outer end a tubular casing 12, which constitutes a part of the standard of the lifting jack. The lower end of the casing is provided with a ball-race 13, or the bearing of the caster 1-., which is securely bolted to the casing by the luck-nut 15. i

The lifting-screw 16 of each jack passesv the internal threads of the operating nut.

18, which is provided with an annular flange having beveled teeth 20 constituting bevel gear for the purpose of driving the same as hereinafter described. This operating nut a ml gear is supported upon a ball bearing having a race 21 in the upper end of the casing -l. The lower portion of the nut projects within the casing and is secured by means of a. screw 22 projecting vvithm an the jaek scrmvs will then be lowered by up annular groove. The lifting screw 15 is pi -sided with a longitudinal slot 23, in Va l-18h a key 24 is adapted to slide to prevent rotation of the screw.

I For the purpose of simultaneously operacting the four corner jacks, I provide bevel pinions 25, meshing with the teeth 20 of the gears 18, and connect the pinions upon crating the ratchet handle 36. The rear saddles can be quickly folded inwardly upon their pivots and the turntable platform can then be moved from under the vehicle.

'The advantages of my combined liftinglack and turntable will be apparent to those who are-familiar with the dilliculties of lift ing automobiles during repair and of turneach side by means of shafts which are as ing them within a small radius in a garage tensible and move with the adjustments of the frame. Each shaft comprises an inner s0lid,member or'r'od 26 havinga longitudina-l' slot, and an outer tubular member 27 which is adapted to slide over the rod 26 but is prevented from rotating thereon by means of a tongue or key '28 fitting into the groove therein, the two members being thus constrained to rotate together. These sha fis are supported in bearings 30, bolted to thecorner brackets.

A drive shaft is provided at one end which is also extensible by means of inner and -v outer telescopic membersiil, 32, provided 25.

respectively with slot and key. .The endsof the drive shaft carry bevel pinions which engage the teeth ofgears 18. The drive shaft is operated by means of a ratchet 'and ratchet handle 36. In order that the shaft may be rotated in either direction, I attach a handle 37 to the projecting end of the. spring ratchet pin 38, that itmay be turned with the beveled side of" the ratchetpin in either direction. v The operation of my combined liftingjack and turntable will beunderstoed from the. foregoing description. i

The table is pushed under the automobile until the saddles d0 are under the front axle and the saddles 41 are under the rear axle, Inasmuch as the rear axles of automobiles are now usually. -I )l'OVlCl(l.\Vltl1Ztlillil-YOLlS- extending across below the ariie, the'szuldles. would not pass under therodseiflhe'y were the same'lieight as the front saddles,;:andmoreover. as these truss-rods extendBJiem-ly to the ends of the axle, thereis practieally no roon'i forthe 'saddles to enge'ge the axle; I therefore makethe-jsaddlesjfor the rear axle yolre shaped with deep slot adapted 'to straddle the truss-rod and pivotally con- 7 1 nect'the sadi'lle-tothe endof the lifting screw so'that. it can be turned down upon one side until it has prssed under the truss-rod; 'lVh'en the frame bars have been 'adjusteil in length and width to properly Tconform .fo' the ve- 'hio'le axles, the jack-screwsoro Silhllllfb neo'usly mused by operating the ratchet hair die 36. until the vehicle is raised fromthe ground. The m tomohile-an'ay then be turned about in any direction or' moved- .from one location lounother with great ease on the ball-bearing casters. .Whn it isor moving them from one location to another in a shop. The structure of my frame pro-' and screws. The fouling yoke-saddles enable the turntable to he moved-under low auto-truel-zs :mdreduee the amount of oleration of the jacks to a minimum. The arseverel jacks to'osingle ratchet device and crating nuts rid the corner piece casings cooperate to produce a mechanism which can be operated by a single person and enbilewith the greatest ease.

ture disclosed-in the "drawings for the urpurling' lroni'the; spirit of my invention;

snqce c 1 a .I claim:-

turnt-able or rolling truck, comprising.- a .rectangular frame hav ng niterfitting chan} to lock the frame members rigidly in any-ad- -andsupporting said frame 1n embers" and '01) moumed'in suid casings, extensible 0psaid casings a ratchet device operatively connected to-one of saidbars, and casters securedtb the lower ends of said casings.

-opemted from a common point, comprising an extensible rectangular frame, a' aek seblemeans for operating said s in unison,

vided with tu ular casings,- extensible bars "nieratis ely connected to said jacks and in ul inemeut therewith, offset corner brackets desired to lower the vehicle, the raii'ahet'pin .is'reversed by means of the handle 37 and connected to'siiid casings within the inclo vides en excecdingly rigid platform and zlYOltlS the strains upon the securingboltsrangcmenb of bevehgears connecting the able him to manipulate the largest automopose: of illustrating one einbodiiiient or my invention, it will be evident to engineers. and those skilled in the-art that "many chauges'miay made'therei-n without tie-1Q the ball bearings interposed between the op- WI "lo I have descr'bed in detail tlie struc- 101 l. A combined multiplelifting-jock and,

.nel members slidable'npon each other, means 'justeil position, corner-brackets secured to 'providei'l ii'ith oll'set tubnlaricn'sings, jack screws provided-With operating nuts rotatano crating bars carrying bevel pinionsgeared'to saidnuts, said bars being iii alinerneiit with cured to each corner of said frame, extensi aml'alsil'iiz'cated supporting saddle pivotalli 3 l l i sure of said bars, and extensible members connecting said brackets and forming a rectangular frame.

4. A multiple lifting-jack adapted to be operated from a common central point, comprising a plurality of single jacks, extensible frame members connecting said jacks, extensible. operating bars supportcdgby said frame members and operatively connected to said jacks and operatively connected together by means of gears, and a ratchetniechanism cor .iected 'llll one of said bars.

A multiple lifting-jack adapted to be operated from a common central point, comirisin a iluralitv of'sin 'le aclis. extensible D e D 4 frame members connecting said jacks, ex-

tensible operating bars supported by and in parallel relation to some of said cxtenslble frame members and connected to said 1acks 2 0' and operatively connected together by means of gears, a ratchet mechanism connected with one of said bars, and means for reversing said ratchet mechanism. l

(3. A multiple lifting-jack adapted to be actuated by a single operating mechanism,

comprising a plurality of single jacks proaided with gears and with surrounding tubular casings, extensible bars in alinement with said jacks and carrying pinions meshing with said gears, corner brackets connected to said casings and offset within the inclosure of said bars, pairs of interfitting channel bars connecting said brackets, said channel bars having their webs in vertical planes,

and ratchet mechanism secured to one of said extensible bars. 7

7. .A multiple lifting-jack adapted to be operated from a common central point, comprising a plurality ot single jacks having tubular casings provided with offset; angular corner brackets, extensible frame members secured to and connecting said brackets, a. lifting-screw extending through each casing and provided with an operating nut, supported upon the casing, independent means associated with said extensible frame members for operating said lifting screws, and a caster secured to the lower end of the vasing, said casing having uppe and lower ball races cotiperating ivith said nut and said caster respectively.

' A multiple lLting-jack adapted to be actuated by r. single operating mechanism,

comprising a plurality of single jacks provided with gears: and with surrounding tubular casings, extensible inns in alinement with said jar-ks and carrying pinions meshing with said gears, corner brackets connected to said casings and oll'set within the inclosure of said bars, pairs of intcrl tting channel bars connecting said brackets, said channel bars having their webs in vertical planes,

lugs projectingfrom said brackets within the channels of said bars, and ratchet mechanism secured to one of said extensible bars. 9. A vehicle liftingjack, comprising a rectangular caster-mounted framework, said frame-work comprising pairs of inter-fitting channel bars having their \vebs arranged in vertical planes, a bevel gear wheel mounted in bearings at each corner portion of the framework, and having an internal; screwthread, a vertical screw shaft passing through each bevel gear wheel and having means-for preventing rotation, a load support on the upper end of each of said shafts,

and means for simultaneously actuatingthe 

